Answer:
-2
Step-by-step explanation:
let the number be 'x'
then the equation can be:
12 - 2x = 8(x+4)
12 - 2x = (8*x) + (8*4)
12 - 2x = 8x + 32
(bring variables to one side and constant terms to another side)
-2x - 8x = 32 - 12
so,
-10x = 20
therefore, x = 20/-10 = -2
so, the number is -2.